9749405 has 4 divisors (see below), whose sum is σ = 11699292. Its totient is φ = 7799520.

The previous prime is 9749393. The next prime is 9749437. The reversal of 9749405 is 5049479.

9749405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5049479 = 643 ⋅7853.

It can be written as a sum of positive squares in 2 ways, for example, as 1466521 + 8282884 = 1211^2 + 2878^2 .

It is not a de Polignac number, because 9749405 - 2¹⁰ = 9748381 is a prime.

It is a Duffinian number.

It is a zygodrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 974936 + ... + 974945.

It is an arithmetic number, because the mean of its divisors is an integer number (2924823).

Almost surely, 2^9749405 is an apocalyptic number.

It is an amenable number.

9749405 is a deficient number, since it is larger than the sum of its proper divisors (1949887).

9749405 is a wasteful number, since it uses less digits than its factorization.

9749405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949886.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 9749405 is about 3122.4037214941. The cubic root of 9749405 is about 213.6285883009.

The spelling of 9749405 in words is "nine million, seven hundred forty-nine thousand, four hundred five".